SYNTHESIS, CHARACTERIZATION, AND PROPERTIES OF LEAD-BASED RELAXOR FERROELECTRICS

Lead-based relaxer ferroelectrics such as Pb(Mg1/3Nb2/3)O-3 (PMN), Pb( Zn(1/3)Nb(2)n)O-3 (PZN), and their solid solutions with BaTiO3 and PbT iO3 have been prepared by a solution combustion process which involves metal nitrates/oxalate and tetraformal trisazine (TFTA) at 350 degree s C. Thermal evolution of perovskite relaxors has been investigated at different temperatures of calcination using the powder x-ray diffract ion method. Particles are fine and sinter-active at low temperature (1 050 degrees C), Both particulate and dielectric properties are compare d.